CA2139605C - Production d'oxygene par des membranes conductrices mixtes dispersees en serie - Google Patents
Production d'oxygene par des membranes conductrices mixtes dispersees en serieInfo
- Publication number
- CA2139605C CA2139605C CA002139605A CA2139605A CA2139605C CA 2139605 C CA2139605 C CA 2139605C CA 002139605 A CA002139605 A CA 002139605A CA 2139605 A CA2139605 A CA 2139605A CA 2139605 C CA2139605 C CA 2139605C
- Authority
- CA
- Canada
- Prior art keywords
- oxygen
- permeate
- stream
- gas mixture
- zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000001301 oxygen Substances 0.000 title claims abstract description 188
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 188
- 239000012528 membrane Substances 0.000 title claims abstract description 187
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 185
- 239000011533 mixed conductor Substances 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 title description 10
- 239000012466 permeate Substances 0.000 claims abstract description 126
- 230000037427 ion transport Effects 0.000 claims abstract description 58
- 239000007789 gas Substances 0.000 claims description 65
- 238000000034 method Methods 0.000 claims description 57
- 230000008569 process Effects 0.000 claims description 54
- 239000000203 mixture Substances 0.000 claims description 48
- 238000000926 separation method Methods 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 20
- 239000011874 heated mixture Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims 1
- 239000000047 product Substances 0.000 description 51
- 238000002485 combustion reaction Methods 0.000 description 17
- 239000000446 fuel Substances 0.000 description 16
- 239000010410 layer Substances 0.000 description 12
- 238000011084 recovery Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 9
- 239000000758 substrate Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 229910044991 metal oxide Inorganic materials 0.000 description 5
- 239000007784 solid electrolyte Substances 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- -1 oxygen ions Chemical class 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- OBOSXEWFRARQPU-UHFFFAOYSA-N 2-n,2-n-dimethylpyridine-2,5-diamine Chemical compound CN(C)C1=CC=C(N)C=N1 OBOSXEWFRARQPU-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- DUNKXUFBGCUVQW-UHFFFAOYSA-J zirconium tetrachloride Chemical compound Cl[Zr](Cl)(Cl)Cl DUNKXUFBGCUVQW-UHFFFAOYSA-J 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/225—Multiple stage diffusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/225—Multiple stage diffusion
- B01D53/226—Multiple stage diffusion in serial connexion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/225—Multiple stage diffusion
- B01D53/227—Multiple stage diffusion in parallel connexion
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0251—Physical processing only by making use of membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/104—Oxygen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0046—Nitrogen
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
De l'oxygène de haute pureté est récupéré à partir de l'air par un système de membranes de transport ionique à haute température comprenant deux ou plusieurs étages dans lequel chaque étage fonctionne à un différent rapport de pression entre le côté alimentation et le côté perméat. Le fonctionnement du système à plusieurs étages à des rapports de pression contrôlés produit de l'oxygène à une faible consommation d'énergie spécifique par rapport au fonctionnement à étage unique.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/180,936 US5447555A (en) | 1994-01-12 | 1994-01-12 | Oxygen production by staged mixed conductor membranes |
| US08/180936 | 1994-01-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2139605A1 CA2139605A1 (fr) | 1995-07-13 |
| CA2139605C true CA2139605C (fr) | 1999-12-21 |
Family
ID=22662251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002139605A Expired - Lifetime CA2139605C (fr) | 1994-01-12 | 1995-01-05 | Production d'oxygene par des membranes conductrices mixtes dispersees en serie |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5447555A (fr) |
| EP (2) | EP0821993A3 (fr) |
| CA (1) | CA2139605C (fr) |
| DE (1) | DE69520965T2 (fr) |
Families Citing this family (50)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9516755D0 (en) * | 1995-08-16 | 1995-10-18 | Normalair Garrett Ltd | Oxygen generating device |
| AU706663B2 (en) * | 1994-09-23 | 1999-06-17 | Standard Oil Company, The | Oxygen permeable mixed conductor membranes |
| ES2126341T3 (es) * | 1995-02-09 | 1999-03-16 | Normalair Garrett Ltd | Dispositivo generador de oxigeno. |
| US5681373A (en) * | 1995-03-13 | 1997-10-28 | Air Products And Chemicals, Inc. | Planar solid-state membrane module |
| US5547494A (en) * | 1995-03-22 | 1996-08-20 | Praxair Technology, Inc. | Staged electrolyte membrane |
| US5557951A (en) * | 1995-03-24 | 1996-09-24 | Praxair Technology, Inc. | Process and apparatus for recovery and purification of argon from a cryogenic air separation unit |
| JPH11503360A (ja) * | 1995-04-11 | 1999-03-26 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 燃焼排ガス中の有害物質、特に窒素酸化物を減少させる方法および装置 |
| EP0743088A3 (fr) * | 1995-05-18 | 1997-05-07 | Praxair Technology Inc | Procédé et dispositif de séparation de gaz avec une membrane électrolytique soumise à une différence de pression |
| US6170264B1 (en) | 1997-09-22 | 2001-01-09 | Clean Energy Systems, Inc. | Hydrocarbon combustion power generation system with CO2 sequestration |
| US5562754A (en) * | 1995-06-07 | 1996-10-08 | Air Products And Chemicals, Inc. | Production of oxygen by ion transport membranes with steam utilization |
| US5680764A (en) * | 1995-06-07 | 1997-10-28 | Clean Energy Systems, Inc. | Clean air engines transportation and other power applications |
| TW317588B (fr) * | 1995-06-14 | 1997-10-11 | Praxair Technology Inc | |
| US5611845A (en) * | 1995-08-22 | 1997-03-18 | Undersea Breathing Systems, Inc. | Oxygen enriched air generation system |
| US5837125A (en) * | 1995-12-05 | 1998-11-17 | Praxair Technology, Inc. | Reactive purge for solid electrolyte membrane gas separation |
| US5700310A (en) * | 1995-12-29 | 1997-12-23 | Mg Generon, Inc. | Removal of oil from compressed gas with macroporous polymeric adsorbent |
| US5753011A (en) * | 1997-01-17 | 1998-05-19 | Air Products And Chemicals, Inc. | Operation of staged adsorbent membranes |
| US5820654A (en) * | 1997-04-29 | 1998-10-13 | Praxair Technology, Inc. | Integrated solid electrolyte ionic conductor separator-cooler |
| US6117210A (en) * | 1997-04-29 | 2000-09-12 | Praxair Technology, Inc. | Solid electrolyte systems for producing controlled purity oxygen |
| US5820655A (en) * | 1997-04-29 | 1998-10-13 | Praxair Technology, Inc. | Solid Electrolyte ionic conductor reactor design |
| US5888272A (en) * | 1997-06-05 | 1999-03-30 | Praxair Technology, Inc. | Process for enriched combustion using solid electrolyte ionic conductor systems |
| US6149714A (en) * | 1997-06-05 | 2000-11-21 | Praxair Technology, Inc. | Process for enriched combustion using solid electrolyte ionic conductor systems |
| US5837034A (en) * | 1997-06-23 | 1998-11-17 | Praxair Technology, Inc. | Process for reducing carbon production in solid electrolyte ionic conductor systems |
| US6106591A (en) * | 1997-06-23 | 2000-08-22 | Praxair Technology, Inc. | Process for reducing carbon production in solid electrolyte ionic conductor systems |
| US5944874A (en) * | 1997-06-23 | 1999-08-31 | Praxair Technology, Inc. | Solid electrolyte ionic conductor systems for the production of high purity nitrogen |
| US5851266A (en) * | 1997-06-23 | 1998-12-22 | Praxair Technology,Inc. | Hybrid solid electrolyte ionic conductor systems for purifying inert gases |
| US5954859A (en) * | 1997-11-18 | 1999-09-21 | Praxair Technology, Inc. | Solid electrolyte ionic conductor oxygen production with power generation |
| US5935298A (en) * | 1997-11-18 | 1999-08-10 | Praxair Technology, Inc. | Solid electrolyte ionic conductor oxygen production with steam purge |
| US5976223A (en) * | 1997-11-18 | 1999-11-02 | Praxair Technology, Inc. | Solid electrolyte ionic conductor systems for oxygen, nitrogen, and/or carbon dioxide production with gas turbine |
| US5964922A (en) * | 1997-11-18 | 1999-10-12 | Praxair Technology, Inc. | Solid electrolyte ionic conductor with adjustable steam-to-oxygen production |
| US6132573A (en) * | 1997-12-05 | 2000-10-17 | Igr Enterprises, Inc. | Ceramic composite electrolytic device and methods for manufacture thereof |
| NO312342B1 (no) * | 1998-05-20 | 2002-04-29 | Norsk Hydro As | En tett enfase membran med bade hoy ionisk og hoy elektronisk ledningsevne og anvendelse derav |
| GB9823651D0 (en) * | 1998-10-29 | 1998-12-23 | Normalair Garrett Ltd | Gas generating system |
| US6641643B2 (en) * | 2000-10-10 | 2003-11-04 | Generon Igs Inc. | Ceramic deoxygenation hybrid systems for the production of oxygen and nitrogen gases |
| AU2003224931A1 (en) * | 2002-04-18 | 2003-11-03 | Trustees Of Boston University | Hydrogen separation using oxygen ion-electron mixed conducting membranes |
| DE10229232A1 (de) * | 2002-06-28 | 2004-01-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Membrantrennverfahren zur Anreicherung wenigstens einer Gaskomponente in einem Gasstrom |
| US6913636B2 (en) * | 2002-12-17 | 2005-07-05 | Hamilton Sundstrand Corporation | Low power nitrogen enriched air generation system |
| US7118612B2 (en) * | 2003-12-30 | 2006-10-10 | Praxair Technology, Inc. | Oxygen separation method utilizing an oxygen transport membrane reactor |
| US7694674B2 (en) * | 2004-09-21 | 2010-04-13 | Carleton Life Support Systems, Inc. | Oxygen generator with storage and conservation modes |
| US7588626B2 (en) * | 2004-11-23 | 2009-09-15 | Trustees Of Boston University | Composite mixed oxide ionic and electronic conductors for hydrogen separation |
| US20090071841A1 (en) | 2005-06-16 | 2009-03-19 | Boston University | Waste to hydrogen conversion process and related apparatus |
| US20100015014A1 (en) * | 2005-09-29 | 2010-01-21 | Srikanth Gopalan | Mixed Ionic and Electronic Conducting Membrane |
| EA012979B1 (ru) * | 2006-12-27 | 2010-02-26 | Милфорд Груп Венчурс Лимитед | Способ повышения нефтеотдачи продуктивного пласта |
| US20090139497A1 (en) * | 2007-11-30 | 2009-06-04 | Bo Shi | Engine having thin film oxygen separation system |
| GB2485789B (en) * | 2010-11-23 | 2014-03-12 | Nebb Engineering As | Method and system for energy efficient conversion of a carbon containing fuel to CO2 and H2O |
| US9044704B2 (en) * | 2012-06-21 | 2015-06-02 | L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Use of oxygen from ion transport membranes in blast furnace |
| US20150336054A1 (en) * | 2013-02-28 | 2015-11-26 | Air Products And Chemicals, Inc. | Process and apparatus for producing oxygen and nitrogen using ion transport membranes |
| DE102016003637A1 (de) * | 2015-03-30 | 2016-10-06 | Ube Industries, Ltd. | Gastrennsystem und Herstellungsverfahren für angereichertes Gas |
| EA036885B1 (ru) * | 2016-08-31 | 2021-01-11 | 8 Риверз Кэпитл, Ллк | Система и способ выработки энергии, использующие устройства переноса ионов |
| US11788466B2 (en) * | 2017-12-08 | 2023-10-17 | Schlumberger Technology Corporation | Compressed N2 for energy storage |
| US12383862B2 (en) * | 2023-03-28 | 2025-08-12 | International Business Machines Corporation | Gas stream enrichment using silicone separator cascades |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4264338A (en) * | 1977-11-02 | 1981-04-28 | Monsanto Company | Method for separating gases |
| US4560394A (en) * | 1981-12-18 | 1985-12-24 | The Garrett Corporation | Oxygen enrichment system |
| US4545787A (en) * | 1984-07-30 | 1985-10-08 | Air Products And Chemicals, Inc. | Process for producing by-product oxygen from turbine power generation |
| IL87977A (en) * | 1988-10-07 | 1993-07-08 | Yeda Research And Dev Co Ltd R | Separation of paramagnetic and diamagnetic gases |
| DE3921390A1 (de) * | 1989-06-29 | 1991-01-17 | Merck Patent Gmbh | Verfahren und vorrichtung zur gewinnung von reinem sauerstoff |
| US5035726A (en) * | 1990-05-24 | 1991-07-30 | Air Products And Chemicals, Inc. | Process for removing oxygen from crude argon |
| US5035727A (en) * | 1990-05-24 | 1991-07-30 | Air Products And Chemicals, Inc. | Oxygen extraction from externally fired gas turbines |
| US5118395A (en) * | 1990-05-24 | 1992-06-02 | Air Products And Chemicals, Inc. | Oxygen recovery from turbine exhaust using solid electrolyte membrane |
| US5174866A (en) * | 1990-05-24 | 1992-12-29 | Air Products And Chemicals, Inc. | Oxygen recovery from turbine exhaust using solid electrolyte membrane |
| US5169415A (en) * | 1990-08-31 | 1992-12-08 | Sundstrand Corporation | Method of generating oxygen from an air stream |
| US5160713A (en) * | 1990-10-09 | 1992-11-03 | The Standard Oil Company | Process for separating oxygen from an oxygen-containing gas by using a bi-containing mixed metal oxide membrane |
| US5240471A (en) * | 1991-07-02 | 1993-08-31 | L'air Liquide | Multistage cascade-sweep process for membrane gas separation |
| US5185014A (en) * | 1991-11-05 | 1993-02-09 | Praxair Technology, Inc. | Membrane oxygen process and system |
| FR2683737B1 (fr) * | 1991-11-18 | 1994-08-05 | Air Liquide | Procede et installation de production par permeation d'un gaz leger impur a partir d'un melange gazeux contenant ce gaz leger. |
| US5160618A (en) * | 1992-01-02 | 1992-11-03 | Air Products And Chemicals, Inc. | Method for manufacturing ultrathin inorganic membranes |
| US5240480A (en) * | 1992-09-15 | 1993-08-31 | Air Products And Chemicals, Inc. | Composite mixed conductor membranes for producing oxygen |
| US5281253A (en) * | 1993-01-06 | 1994-01-25 | Praxair Technology, Inc. | Multistage membrane control system and process |
| US5282969A (en) * | 1993-04-29 | 1994-02-01 | Permea, Inc. | High pressure feed membrane separation process |
-
1994
- 1994-01-12 US US08/180,936 patent/US5447555A/en not_active Expired - Lifetime
-
1995
- 1995-01-05 CA CA002139605A patent/CA2139605C/fr not_active Expired - Lifetime
- 1995-01-10 EP EP97118460A patent/EP0821993A3/fr not_active Ceased
- 1995-01-10 EP EP95100243A patent/EP0663230B1/fr not_active Expired - Lifetime
- 1995-01-10 DE DE69520965T patent/DE69520965T2/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US5447555A (en) | 1995-09-05 |
| CA2139605A1 (fr) | 1995-07-13 |
| EP0821993A3 (fr) | 1999-05-12 |
| DE69520965D1 (de) | 2001-06-28 |
| EP0663230B1 (fr) | 2001-05-23 |
| DE69520965T2 (de) | 2001-09-13 |
| EP0821993A2 (fr) | 1998-02-04 |
| EP0663230A3 (fr) | 1995-09-27 |
| EP0663230A2 (fr) | 1995-07-19 |
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| US5174866A (en) | Oxygen recovery from turbine exhaust using solid electrolyte membrane | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20150105 |
|
| MKEX | Expiry |
Effective date: 20150105 |